Cardiac tamponade classically presents with which combination?

Cardiac tamponade classically presents with which combination?

• A. Jaundice, ascites, peripheral edema
• B. Hypertension, tachycardia, brisk cap refill
• C. Clear lungs, bounding pulses, wide pulse pressure
• D. Distended neck veins, muffled heart sounds, narrow pulse pressure, pulsus paradoxus

Answer: (D)

When pericardial fluid accumulates and compresses the heart, diastolic filling is impaired, reducing stroke volume and cardiac output. This leads to a set of signs known as Beck’s triad: distended neck veins from elevated right atrial pressure, muffled heart sounds from fluid around the heart, and hypotension often with a narrow pulse pressure. Pulsus paradoxus, an exaggerated drop in systolic blood pressure during inspiration, is another classic finding in tamponade. Lungs are usually clear because the issue is restricted filling rather than fluid overload, so you don’t typically see the pulmonary edema seen with some other causes of shock. Therefore, the combination of distended neck veins, muffled heart sounds, narrow pulse pressure, and pulsus paradoxus best fits cardiac tamponade.

When pericardial fluid accumulates and compresses the heart, diastolic filling is impaired, reducing stroke volume and cardiac output. This leads to a set of signs known as Beck’s triad: distended neck veins from elevated right atrial pressure, muffled heart sounds from fluid around the heart, and hypotension often with a narrow pulse pressure. Pulsus paradoxus, an exaggerated drop in systolic blood pressure during inspiration, is another classic finding in tamponade. Lungs are usually clear because the issue is restricted filling rather than fluid overload, so you don’t typically see the pulmonary edema seen with some other causes of shock. Therefore, the combination of distended neck veins, muffled heart sounds, narrow pulse pressure, and pulsus paradoxus best fits cardiac tamponade.